Color radiography

A process for forming radiographs including the steps of:

• arranging a photographic material, which comprises on both sides of a film support at least one silver halide emulsion layer incorporating at least one colour coupler that is capable of forming with an oxidized p-phenylenediamine type colour developing agent a dye, said colour coupler(s) being present in an amount sufficient to allow by exposure and colour development with a p-phenylene diamine developing agent to obtain a spectral density in the material of at least 2.0 with respect to visual filter light, the aggregate amount of silver halide in said material being equivalent to an amount of silver nitrate in the range of 5 g to 1.3 g of silver nitrate per sq.m, the silver halide grain size distribution being such that at least 50% by weight of the silver halide at both sides of the support has a mean grain size smaller than 0.55 .mu.m, between two fluorescent intensifying screens,
• exposing the combination of screens and photographic material to information-wise modulated penetrating radiation, and
• colour-developing said photographic material to form a monochromatic dye image together with a silver image, said fluorescent intensifying screens belonging to the class of screens that have a phosphor layer, whose intensification factor is at least 2 times as high as that of a calcium tungstate phosphor layer having substantial identity with regard to layer thickness, binder composition, phosphor particle size, and phosphor content per sq.m and have a phosphor coverage of at least 100 g per sq.m.